基于NFOSM转速调节器的PMSM模型预测电流控制

发布时间：2018-01-01 03:23

本文关键词：基于NFOSM转速调节器的PMSM模型预测电流控制　出处：《兰州交通大学学报》2016年06期 　论文类型：期刊论文

【摘要】：针对三相永磁同步电机(PMSM)驱动系统,结合分数阶理论和滑模控制理论,提出基于新型分数阶滑模(NFOSM)转速调节器的模型预测电流控制(MPCC)策略.基于NFOSM方法,设计了克服负载扰动及参数变化影响、增强系统鲁棒性的系统转速调节器;给出了减小定子电流脉动、提高系统控制精度的系统MPCC方法.NFOSM转速调节器能为系统提供更多控制余度,且可直接增加包含切换项的分数阶积分项,可有效消除抖振.仿真结果表明:与基于比例积分(PI)转速调节器和基于整数阶滑模(IOSM)转速调节器的PMSM MPCC相比,基于NFOSM转速调节器的PMSM MPCC系统具有更好的控制性能、更强的鲁棒性,而且能够消除系统抖振、减小系统三相电流THD值.仿真结果验证了设计系统的可行性和正确性.
[Abstract]:For the PMSM drive system of three-phase permanent magnet synchronous motor (PMSM), the fractional order theory and sliding mode control theory are combined. A new model predictive current control strategy based on a new fractional sliding mode NFOSM speed regulator is proposed. Based on the NFOSM method, the influence of load disturbance and parameter variation is overcome. System speed regulator to enhance system robustness; The system MPCC method, which can reduce the stator current pulsation and improve the control accuracy, is presented. The NFOSM speed regulator can provide more control redundancy for the system. Furthermore, the fractional integral term containing the switching term can be directly increased. The simulation results show that it is compared with the PMSM MPCC based on the proportional integral Pi (Pi) speed regulator and the integer order sliding mode (IOSM) speed regulator. The PMSM MPCC system based on NFOSM speed regulator has better control performance, stronger robustness, and can eliminate system buffeting. The THD value of three-phase current is reduced. The simulation results verify the feasibility and correctness of the design system.
【作者单位】：兰州交通大学自动化与电气工程学院;
【基金】：国家自然科学基金(61463025)
【分类号】：TM341
【正文快照】： 永磁同步电机(permanent magnet synchro-nous motor,PMSM)因其具有的结构紧凑、高效率、高力矩惯量比和高功率密度等突出优点,在工业、交通、军事等领域被广泛的应用.对PMSM驱动系统而言,除了传统的磁场定向控制(field-oriented con-trol,FOC)和直接转矩控制两种方法(direct

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